Possible Suspicious Activity is a scam, so if this warning is ever displayed to you, do not believe a single word you find written on it because malware it informs you about does not exist on your computer for sure. The only untrustworthy application you might have on your PC is an advertising-supported program (adware) responsible for displaying the Possible Suspicious Activity fake alert. It might not exist on your computer either because not all the users see the fake notification because their PCs are contaminated with malware. Some of them simply open untrustworthy domains with Possible Suspicious Activity or are redirected to them against their will. In the latter case, it will be enough to close the web browser completely and will not let it restore the last browsing session to get rid of the Possible Suspicious Activity scam. If this is not enough in your cases, i.e., the fake warning is displayed to you again, you should start looking for untrustworthy software on your computer because you will need to remove it to delete the Possible Suspicious Activity fake warning from your screen. It might be any untrustworthy application, but the chances are high that it is an adware program.
Such scams as Possible Suspicious Activity are created by cyber criminals not without reason. They use them as tools to convince users to dial a certain telephone number. If they are convinced that there is malware active on their PCs and they need engineers’ help to erase bad software, they make a call and then cyber criminals have a chance to sell them an expensive malware remover or gain access to their PCs claiming that they will only remove malware remotely. Also, they might try to obtain personally-identifiable information from those users, so even if you make a call, do not provide any personal information about yourself because this data might be later used for fraudulent purposes or sold in the black market. Finally, you should not dial this number also because you might get a huge telephone bill. We are sure your PC does not contain malware the Possible Suspicious Activity fake warning informs you about (“Your computer has alerted us that it has been infected with a virus and spyware”). The only untrustworthy program you might have on your PC is an ad-supported program showing Possible Suspicious Activity notifications. If it turns out to be true, delete it right away because you will be presented with disturbing warnings as long as it is active on your system.
If you have been exposed to the fake Possible Suspicious Activity alert because you have opened an untrustworthy domain/clicked on an untrustworthy link, you will no longer see it again once you close your browser. Unfortunately, this usually does not help users to remove it completely. In most cases, users seeing this scam on their screens have malware active on their PCs. If you suspect that you are one of them because the fake warning has been reopened for you again after closing the web browser, you should go to find malware. It might have any name, and it might be hiding in any location, so we cannot promise that it will be easy to detect it. Of course, you can always use an automated scanner. You should also keep your antimalware scanner active on your PC 24/7 so that similar threats could not enter your system without your knowledge again.
The appearance of the Possible Suspicious Activity fake alert on the screen indicates that you have opened an untrustworthy domain or that there is active malware on your computer. The latter is usually the reason users are exposed to this scam. Most probably, it is an advertising-supported application responsible for opening it, but, theoretically, it might be any untrustworthy program or even browser extension. Delete suspicious software through Control Panel and reset your web browser. If it is not enough, perform the system scan with an automated malware remover. You can install the diagnostic version of a powerful scanner by clicking the Download button below this article.